What is the work done by a 20 newton force applied at an angle of 45.0° to move a box a horizontal distance of 40 meters? a. 8.0 × 102 joules b. 9.0 × 102 joules c. 5.6 × 102 joules d. 3.6 × 102 joules

Since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of "if…then…because…” when writing your hypothesis.

Which statement correctly describes the relationship between frequency and wavelength?

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared